OAF: *PG.xml is read-only. Unable to extend the LOVRN to add lovmappings

Hello All,
I am trying to extend the PG.xml to add additional lovmappings using JDev. But the PG.xml is readonly. Unable to create new items on lovmappings!
I have imported all the server.xml for the VO extension. That worked fine. ( I tried to add the new lovmappings using Personalization but with NO LUCK! ).
So, now I am trying to add the lovmappings using JDev and am unable to create new lovmappings! The whole PG.xml is readonly (except the Privacy and others on the footer! ).
So I opened only the PG.xml and the concerned LovRN.xml from myprojects/oracle/apps directory! along with all the myclasses/oracle/apps xml files.
So Do I need to bring in anything else into my project to make the lovmapping to create new items ???
Please help...
Thanks,
Francis

Ramkumar,
This is what I am trying to do!
I extended the LovVO and deployed it successfully to application. I could see and use the newly added fields in the LOV region. That works fine.
The requirement is:
I want to populate the newly added field values from Lov region to the base page. This is what I did.
1. Added the 2 new "Message Styled Text" items (from the extended VO) in the LOV region ( But not rendedred! )
2. Added 2 new "Message Styled Text" items on the base page to populate the values from the LOV region.
3. On the base page, personalizing the LOV (lovMappings) to inherit the values from the LOV region.
>> Created 2 new lovmappings to inherit the 2 new values from the LOV region extended VO. ( Here the "LOV Region Item" {the itemID from the LOV region that I want to bring back and populate} and "Return Item" {the itemID on the base page that I want the value to get populated} are the only fields I entered other than the ID column! )
5. Bounced the apache.
-- After doing this, logged back in and tried the LOV, it doesn't populate the inherited values to the newly created items on the base page.
Thanks for all the help.
FR

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Edited by: 900471 on 2011. 12. 3 오전 5:33
Edited by: 900471 on 2011. 12. 3 오전 5:33
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      disableFormItem('P12_UZI', 'lightgray', 'black');
      disableFormItem('P12_UBI', 'lightgray', 'black');
</script> The resulting page is a lot better looking than using the APEX read only text item.
Regards,
Phil

OAF: *PG.xml is read-only. Unable to extend the LOVRN to add lovmappings

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